22 September 1982.
Chihuahua, Mexico
Locality: La Aurora at 41 km, along road to San Juanito from the La Junta to Yepachic Hwy.
Coordinates: 27.4500, -105.8333
(Map it)
Elevation: 2100m.
Environment description: On the stone-sliff side along the river, shaded by pine woods.